Professor denies greenhouse effect

Theories of climate change were challenged during an Environment Court appeal hearing for Meridian Energy's proposed $2 billion Project Hayes wind farm yesterday. Sediment concerns raised

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As a witness for appellant Roch Sullivan, climate scientist Prof Christopher de Freitas was questioned on his evidence, which had been contested in the evidence of other climate witnesses called in the hearing. Prof Freitas, of the University of Auckland, said there was no evidence to suggest carbon dioxide was the major driver of climate change. More...